/*
 * OREKIT-X
 * Copyright 2002-2008 CS Communication & Systemes
 * 
 * Parts of this software package have been licensed to CS
 * Communication & Systemes (CS) under one or more contributor license
 * agreements.  See the NOTICE file distributed with this work for
 * additional information.
 *  
 * This is an experimental copy of OREKIT from www.orekit.org.
 * Please use the original OREKIT from orekit.org for normal work
 * unrelated to this research project.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you
 * may not use this file except in compliance with the License.  You
 * may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 * implied.  See the License for the specific language governing
 * permissions and limitations under the License.
 */
package ore.attitudes;

import ore.Frame;
import ore.PositionVelocity;
import ore.time.AbsoluteDate;

/**
 * This class handles body center pointing attitude law.
 *
 * This class represents the attitude law where the satellite z axis is
 * pointing to the body frame center.
 *
 * An instance of this class is immutable.
 * 
 * @see     GroundPointing
 * @author V&eacute;ronique Pommier-Maurussane
 */
public class BodyCenterPointing
    extends GroundPointing
{

    public BodyCenterPointing(Frame bodyFrame) {
        super(bodyFrame);
    }


    /** 
     * Get target expressed in body frame at given date.
     * 
     * User should check that position/velocity and frame is
     * consistent with given frame.
     * 
     * @param date Computation date.
     * @param pv Satellite position-velocity vector at given date in given frame.
     * @param frame The frame in which satellite position-velocity is given.
     * 
     * @return Target position/velocity in body frame.
     */
    protected PositionVelocity getTargetInBodyFrame(AbsoluteDate date, PositionVelocity pv, Frame frame){
        return PositionVelocity.ZERO;
    }

}
